With the assumption that patents are worth having, that would no longer be a bad thing. The biggest problem with these trolls is that there is hardly any risk or cost in suing, and they can disengage at any point if that starts to change. This places the defendants are at a significant disadvantage.

With that inequality out of the way, patents could be what they are promised to be: a way to ensure you can monetize to recover a significant investment that you wouldn't have made without the promise of that patent.

(I don't subscribe to the idea that patents are a good thing though; especially the kind of patents that seem to make up 99% of the patent pool).

With a twist: in this variant, patent trolls risk their money if they lose, hence only enforce patents they truly believe in.

Nobody would fund a "method and apparatus for linking users of free app to the paid app" lawsuit if they had anything significant to lose over it.